NWP ensemble guidance from both ECMWF and GFS consistently projects Shanghai's high temperature for April 28 above 20°C, primarily around 24°C. A strong warm thermal advection is evident in current synoptic patterns, precluding a sub-20°C peak. The market is severely mispricing the probability of this outcome given robust model consensus. 95% NO — invalid if a sudden, unforecasted cold front anomaly impacts East China by 00Z April 28.
NWP ensemble guidance from both ECMWF and GFS consistently projects Shanghai's high temperature for April 28 above 20°C, primarily around 24°C. A strong warm thermal advection is evident in current synoptic patterns, precluding a sub-20°C peak. The market is severely mispricing the probability of this outcome given robust model consensus. 95% NO — invalid if a sudden, unforecasted cold front anomaly impacts East China by 00Z April 28.
